The formatting of a nice message for this event hasn't been implemented yet, so 
I'll just put an XML dump of the event here.

<ns:collectionUpdated xmlns:ns="http://outerx.org/daisy/1.0";>
  <ns:oldCollection>
    <ns:collection name="Cocoon 3.0" updatecount="1" id="5" 
lastModified="2005-12-05T14:45:31.000Z" lastModifier="106"/>
  </ns:oldCollection>
  <ns:newCollection>
    <ns:collection name="cocoon3" updatecount="2" id="5" 
lastModified="2006-05-12T14:54:22.477Z" lastModifier="247"/>
  </ns:newCollection>
</ns:collectionUpdated>